Gathering and transportation valve group of oil production platform

Abstract

The utility model provides an oil production platform gathering and transportation valve group, which comprises n single well oil gathering pipelines, a valve group oil gathering pipeline and an oil gathering spare pipeline, the valve group oil gathering pipeline comprises a confluence section and an output section communicated with one end of the confluence section, n oil gathering three-way valves are connected in series on the confluence section of the valve group oil gathering pipeline, output ports of the single well oil collecting pipeline are communicated with the oil collecting three-way valves in a one-to-one correspondence mode through oil collecting branch pipes, the two ends of the oil collecting standby pipeline are communicated with the two ends of a confluence section of the valve set oil collecting pipeline, and stop valves are arranged on an output section of the valve set oil collecting pipeline and the oil collecting standby pipeline respectively. Wherein n is a natural number not less than 2. The gathering and transportation valve group of the oil production platform has the advantages that the design is scientific, the maintenance of the valve group does not influence the production of the whole production system, the failure rate is not increased additionally, and the practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil exploitation technical field, specifically, relate to a kind of oil extraction platform gathering and transferring valve group. BACKGROUND

[0002] Gathering and transferring valve group is the key equipment in oil and gas gathering and transferring system, which is mainly composed of valve, conveying pipeline and connecting components, and the conveying pipeline is used to connect related equipment and its pipeline. The setting of the gathering and transferring valve group facilitates the centralized control of the flow direction and flow rate of the fluid, realizes the distribution of the fluid, and when the equipment needs to be repaired or maintained, the corresponding equipment and its pipeline can be isolated to prevent oil and gas leakage, ensuring the safety of maintenance personnel and the normal operation of the production system. However, when the gathering and transferring valve group itself is damaged, it is more troublesome to repair, and often the entire valve group needs to be closed, which greatly affects the entire production system.

[0003] The patent with application number 202020251782.7 discloses a new gathering and transferring modular valve group, which connects the oil gathering main line manifold to a ring manifold, and sets valves between each connection node. When part of the pipeline is damaged, the valve at both ends of the node can be used to close the damaged pipeline, and the remaining pipelines on the ring manifold can continue to transport normally, thus facilitating maintenance. However, the addition of more valves and parts also increases the failure rate of the valve group.

[0004] In order to solve the above problems, people have been seeking an ideal technical solution. SUMMARY

[0005] The utility model aims at the deficiency of prior art, and provides an oil extraction platform gathering and transferring valve group which is designed scientifically, does not affect the production of the entire production system during maintenance, does not increase the failure rate, and has strong practicality.

[0006] In order to achieve the above purpose, the utility model adopts the technical scheme of an oil extraction platform gathering and transferring valve group, which includes n single-well oil gathering pipelines, a valve group oil gathering pipeline and an oil gathering backup pipeline. The valve group oil gathering pipeline includes a converging section and an output section connected to one end of the converging section. There are n oil gathering three-way valves connected in series on the converging section of the valve group oil gathering pipeline. The output port of the single-well oil gathering pipeline is connected in communication with the oil gathering three-way valves through an oil gathering branch pipe. Both ends of the oil gathering backup pipeline are connected in communication with both ends of the converging section of the valve group oil gathering pipeline. A stop valve is arranged on the output section of the valve group oil gathering pipeline and the oil gathering backup pipeline, respectively. n is a natural number not less than 2.

[0007] Beneficial effects: the arrangement of the n oil collecting three-way valves can connect or disconnect the oil collecting branch pipes at the nodes and the valve group oil collecting pipeline trunk according to the situation, so that the maintenance of a certain node does not affect the transportation of other lines.

[0008] Based on the above, it further includes a valve group metering pipeline and a metering standby pipeline, the valve group metering pipeline also includes a converging section and an output section connected to one end of the converging section, n metering three-way valves are connected in series on the converging section of the valve group metering pipeline, the output ports of the single well oil collecting pipelines are connected to the metering three-way valves through metering branch pipes one by one, and the metering standby pipeline is connected to both ends of the converging section of the valve group metering pipeline, and a stop valve is arranged on the output section of the valve group metering pipeline and the metering standby pipeline.

[0009] Beneficial effects: the arrangement of the valve group metering pipeline facilitates the metering of oil production, the arrangement of the metering standby pipeline and the metering three-way valves also facilitates the connection or disconnection of the metering branch pipes at the nodes and the valve group metering pipeline trunk according to the situation, single well metering or multi-well metering can be realized, and the metering of other lines is not affected when a certain node is maintained. Compared with the background technology, the arrangement of the oil collecting three-way valves and the metering three-way valves does not require the increase of valves and parts, and does not increase the failure rate of the valve group.

[0010] Based on the above, it further includes a first connecting pipe, one end of the first connecting pipe is connected to one end of the converging section of the valve group oil collecting pipeline away from the output section, the other end of the first connecting pipe is connected to one end of the converging section of the valve group metering pipeline away from the output section, and a stop valve is arranged on the first connecting pipe.

[0011] Beneficial effects: under normal working conditions, the stop valve on the first connecting pipe is closed, and the metering pipeline and the oil collecting pipeline operate normally; under the condition of partial pipeline damage, the oil in the metering pipeline can be introduced into the oil collecting pipeline to serve as an oil collecting function for a short time, and the oil in the oil collecting pipeline can also be introduced into the metering pipeline to serve as a metering function for a short time.

[0012] Based on the above, it further includes a second connecting pipe, one end of the second connecting pipe is connected to one end of the converging section of the valve group oil collecting pipeline connected to the output section, the other end of the second connecting pipe is connected to one end of the converging section of the valve group metering pipeline connected to the output section, and a stop valve is arranged on the second connecting pipe.

[0013] Beneficial effects: the arrangement of the second connecting pipe further expands the combination form of the pipeline, for example, by controlling the opening and closing of each valve, the oil gathering standby pipeline can be temporarily used as the metering pipeline, the metering standby pipeline can be temporarily used as the oil gathering pipeline, and the maintenance of the standby pipeline is facilitated.

[0014] Based on the above, the oil gathering standby pipeline, the first connecting pipe, the metering standby pipeline and the second connecting pipe form a ring-shaped loop.

[0015] Beneficial effects: the pipeline structure is simplified, and the pipeline layout is more neat. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of an oil gathering platform gathering valve group in Example 1.

[0017] Figure 2 is a structural schematic view of an oil gathering platform gathering valve group in Example 2.

[0018] In the figure: 1. single well oil gathering pipeline; 2. valve group oil gathering pipeline; 3. oil gathering standby pipeline; 4. valve group metering pipeline; 5. metering standby pipeline; 6. oil gathering tee valve; 7. oil gathering branch pipe; 8. metering tee valve; 9. metering branch pipe; 10. stop valve; 11. first connecting pipe; 12. second connecting pipe. DETAILED DESCRIPTION

[0019] The technical scheme of the present application will be described in further detail below through specific embodiments. Example 1

[0020] As shown in Figure 1 , an oil gathering platform gathering valve group comprises 9 single well oil gathering pipelines 1, a valve group oil gathering pipeline 2, an oil gathering standby pipeline 3, a valve group metering pipeline 4 and a metering standby pipeline 5; the valve group oil gathering pipeline 2 comprises a converging section and an output section connected at one end of the converging section, and the valve group metering pipeline 4 also comprises a converging section and an output section connected at one end of the converging section.

[0021] The valve group gathering pipeline 2 is connected in series with 9 gathering three-way valves 6 on the confluence section, the output port of the single well gathering pipeline 1 is communicated with the gathering three-way valves 6 through gathering branch pipes 7 one by one, and the two ends of the gathering standby pipeline 3 are communicated with the two ends of the confluence section of the valve group gathering pipeline 2; the valve group metering pipeline 4 is connected in series with 9 metering three-way valves 8 on the confluence section, the output port of the single well gathering pipeline 1 is communicated with the metering three-way valves 8 through metering branch pipes 9 one by one, and the two ends of the metering standby pipeline 5 are communicated with the two ends of the confluence section of the valve group metering pipeline 2. In this way, the confluence section is used for gathering the liquid of the single well gathering pipeline 1, and the output section is used for delivering the gathered oil to the corresponding equipment.

[0022] The valve group gathering pipeline 2 is connected in series with 9 gathering three-way valves 6 on the confluence section, the output port of the single well gathering pipeline 1 is communicated with the gathering three-way valves 6 through gathering branch pipes 7 one by one, and the two ends of the gathering standby pipeline 3 are communicated with the two ends of the confluence section of the valve group gathering pipeline 2; the valve group metering pipeline 4 is connected in series with 9 metering three-way valves 8 on the confluence section, the output port of the single well gathering pipeline 1 is communicated with the metering three-way valves 8 through metering branch pipes 9 one by one, and the two ends of the metering standby pipeline 5 are communicated with the two ends of the confluence section of the valve group metering pipeline 2. In this way, the confluence section is used for gathering the liquid of the single well gathering pipeline 1, and the output section is used for delivering the gathered oil to the corresponding equipment.

[0023] Working principle:

[0024] When the valve group gathering pipeline 2 is in normal use, the stop valve 10 on the gathering standby pipeline 3 can be closed, the three ports of each of the gathering three-way valves 6 are connected, the oil in the 9 single well gathering pipelines 1 is gathered into the valve group gathering pipeline 2, and is delivered to the oil storage tank; when a node of the valve group gathering pipeline 2 is damaged, the stop valve 10 on the gathering standby pipeline 3 can be opened, and the valve group gathering pipeline 2 trunk at the damaged node is cut off by using two adjacent gathering three-way valves 6, so that the damaged node can be repaired individually.

[0025] When the valve group metering pipeline 4 is in normal use, the stop valve 10 on the metering standby pipeline 5 can be closed, one or more of the three ports of the metering three-way valves 8 are connected, and the remaining metering three-way valves 8 only connect the trunk of the valve group metering pipeline 4, so that single well or multiple well metering can be performed; when a node of the valve group metering pipeline 4 is damaged, the stop valve 10 on the metering standby pipeline 5 can be opened, and the valve group metering pipeline 4 trunk at the damaged node is cut off by using two adjacent metering three-way valves 8, so that the damaged node can be repaired individually. Example 2

[0026] As Figure 2As shown, the oil production platform's gathering and transportation valve group also includes a first connecting pipe 11 and a second connecting pipe 12. One end of the first connecting pipe 11 is connected to the end of the valve group's oil gathering pipeline 2 that is away from the output section, and the other end of the first connecting pipe 11 is connected to the end of the valve group's metering pipeline 4 that is away from the output section. One end of the second connecting pipe 12 is connected to the end of the valve group's oil gathering pipeline 2 that is connected to the output section, and the other end of the second connecting pipe 12 is connected to the end of the valve group's metering pipeline 4 that is connected to the output section. Both the first connecting pipe 11 and the second connecting pipe 12 are also equipped with shut-off valves 10.

[0027] The arrangement of the first connecting pipe 11 and the second connecting pipe 12 expands the combination forms of the pipeline. For example, by closing the shut-off valve 10 on the second connecting pipe 12 and opening the shut-off valve 10 on the first connecting pipe 11, the oil in the metering pipeline can be introduced into the liquid collecting pipeline for short-term liquid collecting, and the oil in the liquid collecting pipeline can also be introduced into the metering pipeline for short-term metering. By opening both the shut-off valves 10 on the second connecting pipe 12 and the first connecting pipe 11, and temporarily closing the shut-off valves 10 on the valve group oil collecting pipeline 2 or the valve group metering pipeline 4, the oil collecting backup pipeline 2 can be temporarily used as a metering pipeline, and the metering backup pipeline 5 can be temporarily used as an oil collecting pipeline, thus making it more convenient to perform maintenance and repairs without shutting down the system.

[0028] To simplify the pipeline structure, the oil collection backup pipeline 3, the first connecting pipe 11, the metering backup pipeline 5, and the second connecting pipe 12 form a ring loop.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. An oil production platform manifold valve cluster, characterized by: The system comprises n single-well oil gathering pipelines, a valve group oil gathering pipeline and an oil gathering backup pipeline, the valve group oil gathering pipeline comprises a converging section and an output section connected to one end of the converging section, n oil gathering three-way valves are connected in series to the converging section of the valve group oil gathering pipeline, output ports of the single-well oil gathering pipelines are connected to the oil gathering three-way valves through oil gathering branch pipes one by one, two ends of the oil gathering backup pipeline are connected to two ends of the converging section of the valve group oil gathering pipeline, and a stop valve is arranged on the output section of the valve group oil gathering pipeline and the oil gathering backup pipeline respectively, wherein n is a natural number not less than 2.

2. The platform gathering valve cluster of claim 1, wherein: The system further comprises a valve group metering pipeline and a metering backup pipeline, the valve group metering pipeline also comprises a converging section and an output section connected to one end of the converging section, n metering three-way valves are connected in series to the converging section of the valve group metering pipeline, output ports of the single-well oil gathering pipelines are connected to the metering three-way valves through metering branch pipes one by one, two ends of the metering backup pipeline are connected to two ends of the converging section of the valve group metering pipeline, and a stop valve is arranged on the output section of the valve group metering pipeline and the metering backup pipeline respectively.

3. The platform gathering valve cluster of claim 2, wherein: The system further comprises a first connecting pipe, one end of the first connecting pipe is connected to one end of the converging section of the valve group oil gathering pipeline away from the output section, the other end of the first connecting pipe is connected to one end of the converging section of the valve group metering pipeline away from the output section, and a stop valve is arranged on the first connecting pipe.

4. The platform gathering valve cluster of claim 3, wherein: The system further comprises a second connecting pipe, one end of the second connecting pipe is connected to one end of the converging section of the valve group oil gathering pipeline connected to the output section, the other end of the second connecting pipe is connected to one end of the converging section of the valve group metering pipeline connected to the output section, and a stop valve is arranged on the second connecting pipe.

5. The platform gathering valve cluster of claim 4, wherein: The oil gathering backup pipeline, the first connecting pipe, the metering backup pipeline and the second connecting pipe form a ring-shaped loop.

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